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用电化学方法和重量分析法研究各种工业不锈钢在温度为30～103℃,浓度为20%硫酸介质中的钝化性能和耐腐蚀性能。25Cr-5Ni-2Mo(3Cu)型奥氏体铁素体不锈钢在温度70℃的该介质中仍具有良好的钝化性能。但在缺少氧化性介质中腐蚀速度可能加快。这些合金在特殊的腐蚀条件中使用需要进行初步试验。在接近酸溶液沸点时Mo
Electrochemical methods and gravimetric methods were used to study the passivation and corrosion resistance of various industrial stainless steels at a temperature of 30 ~ 103 ℃ and a concentration of 20% sulfuric acid. 25Cr-5Ni-2Mo (3Cu) -type austenitic ferritic stainless steel still has good passivation performance in the medium at 70 ℃. However, corrosion may be accelerated in the absence of oxidizing media. The use of these alloys in special corrosion conditions requires preliminary testing. Close to the boiling point of acid solution Mo